Machine for operating on boots and shoes



May 27, 1924.

F. L. MACKENZIE MACHINE FOR OPERATING ON BOOTS AND SHOES Filed April 17 1919 MTV H llil m h. r

Patented May 27, 1924.

UNITED STATES PATENT OFFICE.

FRED L. MACKENZIE, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF IPATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING ON BOOTS AND SHOES.

Application filed April 17, 1919. Serial No. 290,652,

To all whom it may concern:

Be it known that I, FRED L. MACKENZIE, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Iniprovements in Machines for Operating on Boots and Shoes, of which the following description, inv connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates tomachines for operating upon boots and shoes and more particularly to. machines of this class which embody means for locating the work with respect to the work operating instrumen-- talities.

A. typical machine of the class referred to above comprises a support for the work and means for operating on the work relatively movable toward each other to operate on the work and away from each other to permit of the introduction and removal of work. Commonly the work is: shifted or fed at intervals so that various portions thereof may be progressively operated upon, and if a work locating or gaging means be provided to position the work in the line of feed for the first operation, said gaging means must be removed or withdrawn from gaging position to permit of unobstructed feeding or shifting of the work for subsequent operations. For various reasons gaging or work locating means of the type described heretofore provided have not proved entirely satisfactory.

It is an object of the present invention to provide machines of the class described with improved gaging or work positioning means which will be relatively simple in construction and uniformly certain and positive in operation.

In one aspect the invention comprises means in the line of'feed of the work for positioning the work properly with respect to the tool or other wbrk operating instrumentality which is constructed and arranged to be out of operative position when the work support is in work presenting relation to the work operating means.

In a practical form of the invention the work positioning means is controlled by the work support for movement into and out of the plane of the work, the construction preferably being such that as the work support moves to work receiving position the gage or work positioning means becomes operative while it becomes inoperative when the work support moves in the opposite direction.

Other objects and advantages of the invention will be apparent from the following detailed description and will bepointed out in the claims. In the drawings:-

Fig. 1 is a perspective View of a portion of a machine showing the invention applied in connection with work supporting and feeding mechanisms of a well-known type, and r Fig. 2 is a front View partly in section of portions of the machine illustrated in Fig. 1.

In the drawings, the invention is shown appliedto a fastening inserting machine ofthe type disclosed in the patent to Louis -A. Casgrain, No. 611,405, granted Septeni-- ber 27, 1898, the said machine comprising a work support 4 mounted at the upper end of a post 6 slidable in a-bearing 8 on the bracket 9 and connected to'a rod 10 passing through a bearing 12 on the same bracket and adapted for connection with a treadle (not shown). In the machine the .work support 4 is mounted for rotation,

power means comprising a gear wheel 14 being provided for intermittently rotating the table, the said wheel being secured to the work support 4 and driven through engagement with a shaft 16 having teeth in mesh with the teeth of the wheel 14. Extending over the edge of the table at is an intermittently rotated shaft 18 carrying at its free end a toothed feed wheel 20 de signed to engage and feed work over the upper surface of the work support. In the arrangement shown the shaft 18 carries also a beveled gear 22 which is constantly in mesh with a correspondingly beveled gear on the upper end of shaft 16. Thus in the rotation of shaft 18 both the table 4:

and the feed wheel 20 are caused to rotate intermittently in the same direction to feed the work beneath fastening inserting means, the fastening guiding nozzle ofwhich is indicated at 24: in Fig. 2 of the drawings. The nozzle shown is part of a staple fastening mechanism, though obviously it is immaterial so far as the invention is concerned whether stapling or tacking mechanism like that shown in said patent to Ca grain be used. A portion of the work, in the present instance a welt or rand, is guided to the work on the support 4 along a guideway 26 to pass beneath the feed wheel 20. For a more complete description of the work support mechanism reference should be had to the said patent to Gasgrain.

The gaging means provided for positioning the work on the work support preliminary to the work feeding and fastening in serting operations comprises a gage 28 supported in the illustrative embodiment of the invention on a shaft 30 to which the gage is fixedly attached by the bolt 32. Means is provided for moving the gage to gaging position at the time the work is introduced into the machine and for removing the gage preliminary to the insertion of fastenings so that there is no obstruction to the feeding movements of the work by which the fastenings are spaced, the said means comprising, in a practical construction, a vertical rack bar 34 having teeth 36 arranged in constant mesh with teeth 38 on the shaft 30. Clearly, as the rack 34 is reciprocated in its casing or sleeve 40 it will cause rotative movement of the shaft 30, thus moving the gage 28 into and out of the plane .of the work indicated at 42. Movement of the rack 34 may be secured by operative connections with either the work support or the instrumentalities designed to operate upon the work, a preferred construction being shown in the drawings as comprising the arrangement by which the rack bar is depressed through contact with the under surface of the work support as the latter is drawn down to permit of introduction of the work, the rack bar being maintained constantly in contact with the work support through a spring 44 located in the lower portion of the fixed casing or sleeve 40. It will be evident that as the work support moves upwardly to position the work against the fastening guiding nozzle 24 the rack bar 34 will also be moved upwardly by the spring 44, thus causing rotation of the shaft 30 in a direction to remove the gage 28 from gaging position. Clearly the movements of the work support control the gage to effect the positioning of the same in its operative and inoperative relations to the work as a work gaging member.

In order that the gage may have a wide range of usefulness in connection with pieces of work of various sizes, the said gage is so constructed and arranged that it may be readily re-located upon any change in the size of the work being operated upon. In a preferred construction, movement of the gage 28 toward or from asmuch as the shaft is rotated during move-= ment of the work support it is necessary that the teeth '50 extend substantially around the shaft so that they will remain always in mesh with the teeth on the wheel 48 during rotation of the shaft 30. In order that the gage may be accurately positioned and without undue effort on the part of the operative, there is provided a scale on a plate 52 mounted in convenient position on the side of the work support so that perforations in the plate carrying the scale may be engaged selectively by a pin in the end of the lever 54 which is manually operable to cause rotation of the shaft 56 carrying the toothed wheel 48. Preferably there is provided means in the form of a stop for preventing the upper end of the bar 34 from engaging the lower surface of the rotary table while the latter is in work presenting relation to the nozzle 24. As the work support or table rises, the gage 28 in the illustrative construction rotates to the rear, that is away from the front of the machine, until it comes into contact with the yielding stop 62. Since the gage 28 has positive connections with the bar 34, the latter comes to rest with the gage, the arrangement being such that the work support continues to move upwardly just sufliciently to clear the upper end of the bar 34.

In operating with the machine, the operative will first adjust the gage laterally relatively to the work support if there is need for such adjustment because change in the size of the work from that last operated upon, such adjustment being accomplished by proper manipulation of the lever 54 along the plate 52. Thereafter, the work support 4 will be depressed against spring 60 by pressure upon the treadle to permit of introduction of the work on the work support and below the fastening inserting means or other instrumentalities for operating on the work. Upon depressing the work support the gage 28 will be automatically presented in position to gage the work on the support. Then as the operative releases the treadle, the work support, raised through the spring means 60, presents the work to the fastening inserting means, the gage being moved into inoperative position simultaneously with the described movement of the work support. When the power means of the machine is thrown into operation, the work feeding means operates to feed the work below the fastening inserting means without obstruction on the part of the gage which has been automatically removed as just described. At the end of the operations on the work, the support is again depressed to remove the work and tointroduce a fresh piece of work, the gage automatically appearing in gaging position as soon as the work support is depressed for the purposes to which reference has been made.

Having described my invention what I claim as new and desire to secure by Letters Patent of the United States is 1. In a machine of the class described, instrumentalities for operating on work and a work support relatively movable toward and from each other for engagement with and for release of the work, and a gage'for positioning the work constructed and arranged for movement out of the plane of the work so as to be out of gaging position at the end of the relative work engaging movement of the work support and operating instrumentalities with respect 'to opposite sidesof thework, said gage having operating connections with the work support by which it is moved to inoperative position.

2. In a machine of the class described, means for operating on work and means for supporting the work relatively movable toward and from each other, and a gage for positioning the work on the work supporting means constructed and arranged to be controlled by one of said meansso that the gage moves out of the plane of the work to inoperative positionas the work supporting means presents the work to said work operating means.

3. In a machine of the class described, means for inserting fastenings in work, a. work support -movable toward and from said means to permit of the introduction and removal of the work, and a gage for positioning the work on the work support constructed and arranged to be displaced from the plane of the work to be out of' gaging position when the work support is .in work presenting relation to said fastening msertmg means.

4:; In a machine of the class described, means for inserting fastenings in work, a

movable work support, means for feeding the work over the support for a plurality of fastening inserting operations, and a gage for positioning the work on the work support constructed and arranged to be: controlled by the'movement of the work support so that the gage is out of operative position before thef beginning of the feeding movementof the work.

5. In a machine of the class described,

fastening inserting means, a work support movable toward and from said fastening inserting means, a gage for positioning the work on the work support preliminary to fastening inserting operations thereon, and connections between said gage and work support operating to move the gage downwardly out of operative position as the work support moves upwardly.

6. In a machine of the class described, fastening inserting means, a work support for presenting work to said inserting means, means for feeding the work across said work support for a plurality of fastening inserting operations, a gage for positioning the work preliminary to the insertion of a fastening, and means for automatically removing the gage before the beginning of the feeding movement of the work.

7. In a machine of the class described, fastening inserting means, a work support for presenting the work to the inserting means, means for feeding the work comprising means for rotating the work support, and a gage for positioning the work on the work support preliminary to the insertion of the first fastening constructed and arranged to be moved from gaging position as the work support presents the work to the inserting-means.

8. In a machine of the class described, fastening inserting means, a work support movable toward and from thefastening inserting means for the introduction and removal of work, means for feeding the work over the work support, a gage for positioning the work on the work support, and means for automatically presenting the gage in operative position during the introduction of work and for removing thegage from the path of the workprior to a work feeding operation.

9. In a machine of the class described, fastening inserting means and a work support movable toward and from each other .for. the introduction and removal of work,

,port relatively movable toward and'from each other, a gage for positioning the work on the work support, a shaftfor rotatably carrying sald gage, and connections between the gage and work support'operated during relative movement of the work support and inserting means for-rotating said shaft to move the gage into and out of theflplan'e support the said gage.

of the work and thus to control the operative position of the gage.

11. In a machine of the class described, fastening inserting means and a work support relatively movable toward and from each other, a gage for positioning the work on the work support, a shaft for rotatably carrying said gage, means operated during relative movement of the work support and inserting means for rotating said shaft to control the operative position of the gage, and means for moving said shaft to adjust the gage to position various predetermined sizes of work.

12. In a machine of the class described, a work support movable toward and from work clamping position to clamp and to release the work, a gage for positioning work on the support, and means controlled by said work support for moving the gage into and out of the plane of the work upon work rel-easing and work clamping movements, respectively, of the work support.

13. In a machine of the class described, a work support, a gage for positioning work on the support, and a member yieldingly pressed constantly against the under surface of the work support for controlling 14. In a machine of the class described, a work support, a gage for positioning the work on the support, a rotatable shaft for carrying said gage, a member controlled by said work support for rotating said shaft, and means for shifting the shaft axially to adjust the gage toward and from the work support.

15. In a machine of the class described, a work support, a gage for positioning the work on the work support, a rotatable shaft carrying said gage, a rack bar controlled by said work support for rotating said shaft, and means for shifting the shaft transversely of the rack bar for causing the gage to approach or recede from the work support.

16. In a machine of the class described, a work support movable between work clamping and work releasing positions, a gage for positioning the work on the support, manually operable means for controlling the movements of the support, and connections between said gage and support for automatically controlling the movements ofthe gage into and out of the plane of the work upon work releasing and work clamping movements, respectively, of the work support.

17. In a machine of the class described, means for operating on work and a work relatively movable toward and from each other to engage and to release the work, a gage for positioning the work on the support, a member for supporting the gage independently of the work support so that it does not partake of the movement of the latter, manually operable means for controlling the movements of the work support, connections between said gage and work support for automatically moving and controlling the position of the gage during the said relative movements of the work operating means and the work support, and manually operated means for moving and adjusting thegage relatively to the work sup-port.

18. In a machine of the class described, a work support, a gage for positioning the work on the support, means for rotating the'work support, manually operable means for raising and lowering the support, and connections between said gage and the support for positioning the gage automatically in gaging position and for removing the same prior to the rotation of the work support.

19. In a machine of the class described, fastening inserting means and a work sup port movable toward and from each other for the introduction and removal of work, a gage for positioning the work on the work support, and connections between the gage and work support operative during relative movement of the inserting means and work support to move the gage from the plane of the work to inoperative position preliminary to the insertion of fastenings.

20. In a machine of the class described, fastening inserting means and a work support movable relatively to each other for the introduction and removal of work and for the feeding of the work in the intervals of fastening insertion, a gage for positioning the work on the work support, and connections; between the gage and the work support operative during relative movement of the inserting means and work support to move the gage from the plane of the work to inoperative position prior to the insertion of a fastening and to retain said gage in inoperative position during the insertion of a series of fastenings in the given piece of work.

21. In a machine of the class described, fastening inserting means and a work support relatively movable toward and from each other in the plane of fastening insertion for the insertion of fastenings and the introduction and removal of work, a gage for positioning the work on the work support, and connections between the gage and work support operative during relative movement of the inserting means and work support in the described plane to move the gage into work-gaging position while the.

work support is in work-receiving .relation' to the fastening inserting means.

22. In a machine of the class described, a tooland a work support movable relatively to each other for the introduction and removal of Work and for the feeding of the Work at intervals, a gage for positioning the Work on the WOIk support, and connections between the gage andthe Work support operative during relative movement of the tool and Work support to move the gage from the plane of the Work to inoperative position rior to the first operation In testimony whereof I have signed my I name to this specification.

FRED L. MACKENZIE. 

